Music-leaf turner



, (No Model.) 2 Sheets-Sheet 1-.

L. H. PAYNE.

MUSIC LEAF TURNER.

(No Model.) 2 SheetsSheet 2.

L. H. PAYNE.

MUSIC LEAP TURNER.

No. 581,081. Patente Apr.20, 1897.

UNITED STATES ATENT Grinch,

LEE II. PAYNE, OF IIUEDLAND, MLSSOURI.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent N 0. 581,081, dated April20, 1897.

Application filed April 10, 1896. Serial No. 586,988. (No model.)

To aZZ whom it may concern.-

Be it known that I, LEE H. PAYNE, a citizen of the United States,residing at Hurdland, in the county of Knox and State of Missouri, haveinvented a new and useful Music-Leaf Turner, of which the following is aspecification.

My invention relates to music-leaf turners, and has for its object toprovide a construction and arrangement of parts whereby a plurality ofleaves of either book or sheetmusic may be turned successively withoutrequiring the movement of the performers hand from the keyboard of aninstrument, the successive operations of the device being accomplishedby the successive depressions of a single key which is adapted to belocated contiguous to the keyboard of the instrument.

Further objects and advantages of this i11- vention will appear in thefollowing deseription, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a perspective View of a music-leaf turnerconstructed in accordance with my invention with the turning-armsengaged with the leaves of a book. Fig. 2 is a rear view, partly brokenaway, of the same. Fig. 3 is a vertical transverse section on the line 33 of Fig. 2 to show the means for limiting the movement of theholding-pin. Fig. 4: is a detail vertical section of a portion of therack to show the means for securing the rest at its differentadjustments. Fig. 5 is a detail view in perspective of that portion ofthe frame or rack by which the releasing device for the turning-arms issupported.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

The frame or rack of the leaf-turner consists of a boundary-wire 1 orits equivalent, provided at its angles with rearwardly-extending loopsor proj ectious 2, which are preferably covered or padded to preventmarrin g the finish of the instrument to which the device is applied,and the upper and lower sides of the frame or rack are connected by thevertical brace rods or wires 3 and by a central guide-rod 4:. Mountedupon this guide-rod is a slide 5, having keepers 6, (shown in Fig.

2,) and the slide carries a book-rest '7, which may be secured at anydesired elevation to suit the size of the book or sheet by means of aset-screw 8, which is threaded in an enlargement contiguous to the lowerend of the slide and impinges at its rear end against the guide-rod.

Fulcrumed upon a central spindle 9 are the turning-arms 10, any desirednumber of which may be employed, said turning-arms being provided attheir outer extremities with leafolasps 11, preferably clothed or paddedto pre vent marrin g the leaves. These turning-arms are provided withactuating plate-springs 12, which are secured at one end to an upright13, and are provided at their free ends with guideeyes 14, which slideupon the turningarms, the intermediate portions of said springsextending around the hubs of the turning-arms and bearing against therear sides thereof.

The means which I employ for securing the turning-arms in theiroperative positions include a reciprocatoryholding-pin 15, whichoperates in a plane parallel with the common spindle of theturning-anus, and hence is adapted to engage one or more of theturning-arms, according to its position. In other words, when theturning-arms are in their operative positions in engagement with theholding-pin they are arranged in a common vertical plane, with the firstarm to be released arranged contiguous to the extremity of theholding-pin, whereby upon retracting said holding-pin the first arm willbe released without affecting the others. In this way the arms may besuccessively released by a longitudinal movement or retraction of theholding-pin in one direction. This holding pin is extended to occupy aposition in engagement with the turning-arms by means of anactuating-spring 16, which is preferably coiled around an operating orconnecting rod 17, attached to or formed integral with its upper end,saidoperating or connecting rod extending through a guide-eye 18contiguous to the rear side of the rack and being pivotally connected atits lower extremity to a keylever 19. This key-lever is mounted upon aforwardly-extendin g bracket 20 contiguous to the lower side of the rackand is fitted at its front extremity with a key 21, which is adapted tobe located contiguous to the lacyboard of the instrument to which theapparatus is applied.

It will be seen that the depression of the key will cause the upwardmovement of the operating or connecting rod against the tension of theactuating-spring, and hence the retraction of the holdin g-pin torelease a t urning-arm.

In order to prevent a greater retraction of the holding-pin at oneoperation than is sufiicient to release one turning-arm, I employ abrake 22, having a shoe 28, which is arranged in frictional contact,preferably, with the rear side of the holding-pin, and is adapted toengage one of a series of beveled notches 24-, formed therein, saidnotches being snliieient to sli htly obstruct the movement of theholding-pin when engaged by the shoe of the brake without completelylocking said holding-pin against movement. Thus when the key-lever isdepressed the heh'lingpin yields freely until one of its notches isengaged by the brake, wnen the additional resistance checks furthermovement in time to prevent the release of a second turning-arm. Thesubsequent depression of the hey-lever is not obstructed, however,sufficiently to involve difficulty in releasing the succeedingturning-arm.

In connection with the above-described brake mechanism I also employ aclutch 25, consisting of a spring-actinited pawl which is adapted tobear i'rietionally against the front side of the holding-pin to en, goone of a series of shouldered notches it, formed therein, the notchesfor engagement by the pawl being beveled in the opposite direction tothose which are provided for engagement by the brakc-shoe, and henceserving to obstruct the downward or forward movement of the holding-pin.Hence when the device is operated suiiiciently to release a turningarmthe holding-pin is locked and held from returning to its fully-extendedposition by means of the clutch, and therefore the successive operationsof the key-lever are approximately of uniform extent, said lever beingheld after each movement in the position it occupied at the moment ofreleasing the turning-arm.

In order to release and allow a partial extension of the holding-pin asthe turningarms are successively bronghtinto operative position afterengagement with the leaves of the book or sheet, I employ a trip-arm 27,which depends in the path of said turningarms contiguous to theholding-pin, and is adapted to be repressed by said arms, said trip-armbeing attached to the pawl of the clutch. Hence when a turning-arm isswung to the operative position at the right of the rack and is pressedagainst the trip-arm the pawl is disengaged from the notch in theholding-pin, and the holding-pin is advanced by means of itsactuating-spring to engage said turning-arm, but it is held from furtherextension by the engagement of the pawl with the succeeding notch of theholding-pin. Thus the arms are successively engaged by a step-by-stepmovement of the holding-pin as they are turned to their positions at theright of the rack.

it will be understood that the notches which are formed in theholding-pin for engagement, respectively, by the brake-shoe and clutchare spaced apart a distance corresponding with the interval between thehorizontal planes of contiguous turning-arms, inasmuch as said distancebetween the horizontal planes of the turning-arms regulates the extentof advance or return movement of the holding pin necessary to engageor-release a turning-arm.

Attached to the upper side of the rack are stationary clasps 28, adaptedto engage the back of the book or sheet, or that portion of thecomposition which does not include the leaves to be turned.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any of the advantages of this invention.

Having described my invention, what I claim is 1. in a musiodeaf turner,the combination of an open frame or rack constructed of a continuous rodlooped at its corners to form rearwardly-extendingprojections and havingthe loops clothed or padded to prevent marring the instrument to whichthe device is applied and against which the loops bear, abook-supporting rest mounted. for adjustment upon the frame or rack,turningarms provided with means for engaging leaves, and means foractuating the turnil'ig-arms, sub stantially as specified.

In a music-leaf turner, the combination. with a frame or rack, ofcoaxial spring-actuated turning-arms, a reciprocatoryholdingpin mountedfor movement parallel with the axis of the turning-arms and providedwith an actuating-spring whereby it is extended to engage said arms,said pin being provided at one side with a series of beveled notches andat the opposite side with a series of correspondingly spaced shoulderednotches, means for retracting the holding-pin to suecessively releasethe arms, a clutch engaging the shouldered notches to secure the pinagainst subsequent advancement after each retraction, and aspring-actuatedbrake having its shoe arranged in frictional. contactwith the pin to successively engage said beveled notches and therebyretard the retraction of the holding-pin at intervals to preventexcessive movement thereof, substantially as specified.

3. In a music-leaf turner, the GOli'ibillllliOii with a frame or rack,of coaxial spi'ingnetuated turning-arms, a reci n'ocatory holdingpinadapted to intersectthe paths of the turning-arms and provided. with. anactuating- 10 the holding-pin and allow a step-by-step ex- 1 tensionthereof the turning-arms are suecessively broughtinto operative relationwith the holding-pin, substantially as specified.

In testimony that I claim the foregoing as 1nyown I have hereto affixedmy signature in 15 the presence of two witnesses.

LEE H. PAYNE. YVitnesses:

J. LAWRENCE CANNON, L. J. CANNON.

